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(Nmodelv.)

G. `B. PELL. APPARATUS PoR PRODUGING ARTIHGI'AL RBSPIRATION.

No, 374,402. Patented Deo. 6, 1887.

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. UNITEDA STATES PATENT OFFICE.

GEORGE E. EELL, OE BUFFALO, NEW YORK.

APPARATUS FOR PRODUKCINGARTIFICIAAL RESPIRIATION.

l SPECIFICATION forming part of Letters Patent No. 374,402, dated December 6. 1887.

Application filed August 24, 1.887. Serial No. 217,706. (No model.)

T all whom it may concern:

pended and artificial aeration of the blood be comes necessary to sustain life-as, for instance, in resuscitatiug drowned or poisoned persons. l

The object of niyinventionis to produce an apparatus which is reliable in its'operation and easily applied and manipulated.

My invention consists of the improvements which will be hereinafter fully set forth, and pointed out in the claims. p

In the accompanying drawings, Figure l is an elevation of my improved apparatus. Fig. 2 is a sectional elevation of the traoheotomytube, by which connection is made with the trachea. Fig. 3 is a sectional elevation of the air-valve. Fig. 4 is a sectional elevation of the air-warming apparatus. 'Fig 5 is a sectional view of a modified construction of the air-valve. v

Like letters of reference refer to like parts in the several figures.

A represents a tracheOtomy-tube, by lwhich connection is made with the trachea or larynx, as the case may be, preferably with the trachea, as it avoids injury to the larynx and establishes communication with the air-passages below any obstruction which may ejiist in the larynx by paralysis or otherwisa/ The traoheotolny-tube consists ,as usual, of an outer tube, a, provided with .t s ield, a', and aninner tube, b, which is held in Aplace by a turn-button, b. The lower end of the outer tube, a, is preferably corrugated, so that it can be rmly secured in the trachea by a ligature.

c represents a nipple, which is attached-to the end of the flexible air-supply tube d, and which is connected with the upper end of the inner tube, b, hy a screw-thread, as shown, or in any other suitable manner, so as to form a tight and secure joint, and at the same time permit the nipple to be readily detached from the inner tube.

E represents a bellows or forcing device,whereby air issupplied through tubesd d d2 and the tracheotomy-tube A to the trachea.

F represents an air-'valve arranged between the air-supply tubes d d and establishing at desire communication between the tracheotomy-tube and the bellows or with-the outer air. As'representedin Fig. 3, the valve F is provided with an upright tubular shell or case, f, open at its lower end and supported on legsf,to permit of the free escape of the air through vthe lower end of the shell.

y is'the air-outlet nipple, and g the inletnipple, arranged diametrically opposite each other On the lower portion of the shellf, and connected, respectively, with the tubes d d.

H represents a movable piston arranged in the shell f, and provided at its lower end with arecessh,which o'pens downwardly and toward the exit-nipple g,while it closes the inlet-niple v p hgis a dametrical passage formed in the piston H above the recess 71, so that by depressing the piston the twonipples can be placed iu communication through the passage h.

h is a spring which holds the piston in another suitable airy.

elevated position, and h3 is a push-button formed at the upper end of the stem of the piston. In the elevated posit-ion of the piston represented in` Fig. 3 the recess h establishes communication .between the trachea and the Outer air.

I represents an air warming apparatus, which may be used in cold weather forraising the temperature of the air to the proper point beforesupplying it to the patient. A s shown in the drawings, the warming apparatus cousists of a vessel, t', which is filled with water, and is heated by a lamp, i. The air is conducted to the lower portion of the vessel z' by the tube di, which descends nearly to the bottom of the vessel, and the air escapes from the vessel through the tube d'. A thermometer, i, is provided in the vessel for indicating the temperature of the water and air. The water in the vessel also serves to intercept any impurities which may be contained in the air.

IOO

When the outer air has the proper temperature, this warming apparatus may be omitted. My improved apparatus is used by introducing the tubeA into the trachea and alter- 5 nately supplying air thereto and permitting it to escape therefrom. rlhis regulation of the ilow of air is effected by the valve F. Upon depressing the button h, so as to bring the passage L' in line with the nipples q y', the air io is forced by the bellows through the tube d and the traehcotomytube A into the traehca and lungs. Upon releasing the button the spring l'aises the pistonH to the position represented iu Fig. 3, in which the piston shuts off, the air from the bellows and permits the 'air to escape from the lungs through the tubes A and d, nipple g, and recess h. By working the bellows and depressing the piston H at regular intervals al'tilicial respiration is prozc duced in asimple and certain manner. When the patient has so far recovered that the lungs resume their action, the nipple c and tube (l are disconnected from the inner tube, I, leaving the latter and the outer tube, u, in place in the trachea, so that connection can be made,

again with the bellows ifthe action ofthe lungs should temporarily fail. In the normal position of the piston H communication is established between the lungs and the outer air, so

3o that the patient can breath through the valve, if capable of doing so, and whereby a free passage is formed for the escape of blood, wai ter, &c., which may be coughed up.

Instead ofthe valve F, a two-way cock may be employed, as represented in Fig. v5.

K represents the case of the cock, provided with nipples k k', connected, respectiif'ely, with the tubes (l d', and havingr a passage, It, which opens into the outer air. rlhe plug l of the to cock is provided with a bent passage, l', by

which communication can be established b etween the tubes d d', as shown, for forcing air to the tube A, or by which the air can be eX- hausted through the passage It, when the'passage is arranged as indicated by dotted lilies. I prefer, however, to employ a spring-valve,

F, as it establishes automatically con1mun1cation between the t-rachea and the outer air.

I claim as my invention l. The combination, with the tracheotomy- 5o tube composed of an outer tube, a, and inner tube, b, of an air-supply tube, d, detachably connected with the inner tube, b, substantially as set forth.

2. The combination, with the traeheotomytube, of an air-forcing apparatus, a tube connecting said apparatus with the tracheotomytube, and 'a regulating-valve arranged in the connecting-tube, whereby communication can be established'at will between the tracheotomy-tube and the air-forcing apparatus or the outer ai r, substantially as set forth.

3. The combination, with the tracheotomytube, of an air-forcing apparatus, a tube connecting said apparatus with the tracheotomytube, a regulating-valveaud au air-warming apparatus, both arranged in said connectingtube, substantially as set forth.

4. The combination, with a tracheotomytube, of air-supply tubes d (Z, a regulating- 7J valve, F, having a shell,f, nipples r/ y', and a piston, H, provided with a recess, h, and passage t, and au air-forcing apparatus, substantially as set forth.

Witness my hand this 19th day of August, 75 1887.

GEO. E. HELL. Witnesses:

JN0. J. BONNER, G no. J. Buonurr, Jr. 

